icing sugar and baking powder to kill ants

[peridito]

but won't it kill bees and other insects ?

www.rhs.org.uk/advice/profile?pid=503

Rhs info on ants.

Thanks Mashed . I keep reminding myself that they do no harm but my parch has so many nests . They bite/sting a lot and make sitting on the grass a no no and kneeling to weed painful .

But ,I must try and put up with them I think .